org.knowceans.topics.cgen
Class AtmipGibbsSampler

java.lang.Object
  org.knowceans.topics.cgen.AtmipGibbsSampler

public class AtmipGibbsSampler
extends java.lang.Object

Generated Gibbs sampler for the ATM model. author--topic model, testing abserved nodes

Implementation using parallelised independent samplers.

Mixture network specification:

m >> (am[m]) >> x[m][n]
x[m][n] >> (theta[x] | alpha) >> z[m][n]
z[m][n] >> (phi[z] | beta) >> w[m][n]


elements:

   document m
   type: {ROOT|E1SINGLE}
   parents: (root)
   children: am
   range: M
----
   doc-author (am[m])
   type: {VISIBLE|SEQUENCE|C1ROOT}
   parents: m
   children: x
   components: am, domain: M, range: am[m].length in A
   counts: nmx, sum: null
   index: m, selector: null
   label node (sparse indexing)
----
   author x[m][n]
   type: {HIDDEN|QFIXED|E1SINGLE}
   parents: am
   children: theta
   range: A
----
   author-topic (theta[x] | alpha)
   type: {TOPIC|C1ASINGLE}
   parents: x
   children: z
   components: theta, domain: A, range: K
   counts: nxz, sum: nxzsum
   index: x, selector: null
   hyperparams: alpha, dimension 1, fixed: false 
----
   topic z[m][n]
   type: {HIDDEN|QFIXED|E1SINGLE}
   parents: theta
   children: phi
   range: K
----
   topic-word (phi[z] | beta)
   type: {TOPIC|C1ASINGLE}
   parents: z
   children: w
   components: phi, domain: K, range: V
   counts: nzw, sum: nzwsum
   index: z, selector: null
   hyperparams: beta, dimension 1, fixed: false 
----
   word w[m][n]
   type: {VISIBLE|E1SINGLE}
   parents: phi
   children: (leaf)
   range: V
----
sequences:

words [m][n]
parent: (root), children: []
edges: m x z w
authors [m][j]
parent: (root), children: []
edges:

 

Author:

gregor heinrich (via MixNetKernelGenerator)

Field Summary

(package private) int	A
(package private) double	alpha
(package private) double	alphasum
(package private) int[][]	am
(package private) int[][]	amq
(package private) double	beta
(package private) double	betasum
(package private) int	iter
(package private) int	K
(package private) int	M
(package private) int	Mq
(package private) int	niter
(package private) int[][]	nxz
(package private) int[]	nxzsum
(package private) int[][]	nzw
(package private) int[]	nzwsum
(package private) int	P
(package private) double[][]	phi
(package private) double[][]	pp
(package private) java.util.Random[]	rand
(package private) double[][]	theta
(package private) int	V
(package private) int[][]	w
(package private) int	W
(package private) int	Wa
(package private) int	Waq
(package private) int[][]	wq
(package private) int	Wq
(package private) int[][]	x
(package private) int[][]	xq
(package private) int[][]	z
(package private) int[][]	zq

Constructor Summary

AtmipGibbsSampler(int[][] am, int[][] amq, int Amax, int A, double alpha, int K, double beta, int[][] w, int[][] wq, int V, java.util.Random rand)

Method Summary

void	estAlpha()
void	init()
void	initq()
static void	main(java.lang.String[] args)
double	ppx()
void	run(int niter)
void	runq(int niterq)
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

rand

java.util.Random[] rand

iter

int iter

niter

int niter

M

int M

Mq

int Mq

am

int[][] am

amq

int[][] amq

x

int[][] x

xq

int[][] xq

A

int A

nxz

int[][] nxz

nxzsum

int[] nxzsum

alpha

double alpha

alphasum

double alphasum

theta

double[][] theta

z

int[][] z

zq

int[][] zq

K

int K

nzw

int[][] nzw

nzwsum

int[] nzwsum

beta

double beta

betasum

double betasum

phi

double[][] phi

w

int[][] w

wq

int[][] wq

V

int V

W

int W

Wq

int Wq

Wa

int Wa

Waq

int Waq

pp

double[][] pp

P

int P

Constructor Detail

AtmipGibbsSampler

public AtmipGibbsSampler(int[][] am,
                         int[][] amq,
                         int Amax,
                         int A,
                         double alpha,
                         int K,
                         double beta,
                         int[][] w,
                         int[][] wq,
                         int V,
                         java.util.Random rand)

Method Detail

main

public static void main(java.lang.String[] args)

init

public void init()

initq

public void initq()

run

public void run(int niter)

runq

public void runq(int niterq)

estAlpha

public void estAlpha()

ppx

public double ppx()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object